There is a FAQ on the official homepage, saying that it is good to download and install a file, and there is a video to teach you. But the files can't be downloaded anymore, and it seems that the after-sales service is quite poor. Knowing that there is a problem, even the download link is Baidu's. Baidu downloads, and it will not let them download rogue software without installing it. . Alas, there are pits everywhere.